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If (sec A+tan A) (sec B+tan B) (sec C+tan C) = (sec A-tan A) (sec B-tan B) (sec C-tan C),prove that each of the side is equal to √1

Posted by Sejal ??? 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Sejal ??? 6 years, 10 months ago

It's not coming

Teerth Raj Singhal 6 years, 10 months ago

Either add LHS to both sides and solve or add RHS to both sides and solve

ANSWER

What is the HCF of smallest composite number and smallest prime number

Posted by Legend ??? 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Puja Sahoo ? 6 years, 10 months ago

2......

Noor Mehta 6 years, 10 months ago

As we know that , Smallest prime no.= 2 Smallest composite no.=4 HCF:- 2 = 1×2 4 = 2×2 SO COMMON FACTOR IS 2 HENCE, HCF = 2.

Geetanand Yadav 6 years, 10 months ago

Smallest prime number=2, smallest composite number=4.so hcf=2

Shivay Brahmåñ 6 years, 10 months ago

Smallest prime number is 2 and smallest composite number is 4 ............... Hcf of 2 & 4 is 2

ANSWER

A petrol tank is a cylinder of base diameter 21cm and length 18cm fitted with conical end s each of axis length 9cm determine the capacity of the thank?

Posted by Reem Chhabra 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Teerth Raj Singhal 6 years, 10 months ago

10395cm^3

Rajan Sinha 6 years, 10 months ago

?

ANSWER

What is the algebraic sum of the deviations of a frequency distribution from its mean? Also prove this.

Posted by Jatin Sethi 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Prove that:cosA/1-tanA +sinA/1-cotA=sinA+cosA

Posted by Samrat Kkkkk 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Class 10th all important questio. Guess question

Posted by Sumit Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Puja Sahoo ? 6 years, 10 months ago

Complete yur ncert..........

Ashish Singh 6 years, 10 months ago

Solve oswaal books

Geetanand Yadav 6 years, 10 months ago

Proving of theorem from lesson 6th

ANSWER

In a trapezium ABCD,AB||CD and DC=2AB ,where E and F lie on BC and AD respectively such that BE / EC = 4/3 . diagonal DB intersect EF at G . prove that 7EF = 11 AB

Posted by Ranjan Kumar 5 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Teerth Raj Singhal 6 years, 10 months ago

BE/EC=4/3, CD=2 AB BE/EC=AF/FD=4/3 ?BGE SIMILAR ?BDC EG/CD= BE/BC EG= 4/7CD SIMILARLY, FG= 3/7 AB ADD I AND II EF=11/7AB

ANSWER

What are the theorams that can be come in exsm of class 10 cbse 2019

Posted by Saket Parihar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Saket Parihar 6 years, 10 months ago

Hey any converse theoram can also come

Affu 😊 6 years, 10 months ago

Phythagorus and thales are main important theorems

First Name Last Name 6 years, 10 months ago

most important (prove that √3 is irrational this type of questions)

Last Bencher 6 years, 10 months ago

Pythagoras theorem , bpt,

ANSWER

What is the comman difference of an A.p in which a21-a7=84

Posted by Chandru Sundar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Shivay Brahmåñ 6 years, 10 months ago

6

Last Bencher 6 years, 10 months ago

a+2d-(a+6d)=84. =a+20d-a-6d. =14d=84. =d=84÷14=6

Muhamed Shahil 6 years, 10 months ago

6

ANSWER

prove that, n^2 -1 is divisible by 8 for positive odd integer n

Posted by First Name Last Name 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Teerth Raj Singhal 6 years, 10 months ago

It is possible when n =4q+1or 4q+3

ANSWER

Find the centre of a circle if the end points of a diameter are P (-5,7) and Q (3,-11)

Posted by Harshit Mill 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Teerth Raj Singhal 6 years, 10 months ago

(-1,-2)

Shivay Brahmåñ 6 years, 10 months ago

The correct answer is -1,-2 as x=-5+3/2=-1…....…... Y=7-11/2.=-2... (-1,-2)

Sejal ??? 6 years, 10 months ago

(4,-9)

ANSWER

A squre of side 4cm is inscribed in a circle . find the area enclosed between the circle and the square

Posted by Technical Malik Ji 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Sejal ??? 6 years, 10 months ago

9.143(approx.)

ANSWER

Solve the following pair of equation by reducing them to a pair of linear equation 5/x-1+1/y-2=2 and 6/x-1-3/y-2=1

Posted by Akash Chauhan 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Hello Bhi 6 years, 10 months ago

X= 4 Y= 5

ANSWER

The angle of elevation of the top of a tower from a point on the same level as the foot of the tower is 30°.on advancing 150m towards the foot of the tower, the angle becomes 60°. Show that the height of the tower is 129.9 meters [given√3=1.732]

Posted by Ritabrata Dutta 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

State fundamental theorem of arithmetic?

Posted by Ritabrata Dutta 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Purvanshi Yadav 6 years, 10 months ago

Every composite number can be expressed as a product of primes apart from order of prime factors.

Aniket Kumar Singh 6 years, 10 months ago

According to funday theorem of arithmetic prime factorisation of a no. Is unique

Abhay Pandey 6 years, 10 months ago

A is equal to b b q + r

ANSWER

Find the value of k, if the point P(2,3)is equidistant from the point A(K,1)and B(7,K)

Posted by Vishal Vishu K. Mathur 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Abhay Pandey 6 years, 10 months ago

Use distance formula.

Pratibha Sahu 6 years, 10 months ago

K= 13

Chetna ☺️ 6 years, 10 months ago

Here, AP= BP so, apply distance formula and u will get the solution... .

ANSWER

Seven times a two digit number is equal to four times the number obtained by reverseing the order of its digits . If the difference of the digits is 3, determine the number.

Posted by Mihir Panchal 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Ram Kushwah 6 years, 10 months ago

Let digits are x and x+3

Number with x at 10th place=10x+x+3=11x+3

On reversing the digits number=10(x+3)+x=11x+30

So 7( 11x+3)=4(11x+30)

77x+21=44x+120

33x=120-21=99

x=3

so Numbers are 36 and 63

ANSWER

Find the value of k if the point A(2,3),B(4,K)and C(6,-3) are collinear

Posted by Vishal Vishu K. Mathur 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Chetna ☺️ 6 years, 10 months ago

In the case of collinear area of ∆ becomes 0 so put these values in the formula of area of triangle and hence find the solution .......

ANSWER

Guys es baar board ne 10 ke liye new rule banaya hai ki har student ko internal + external me marks joodh ke 33% score kiya ja sakta hai Agar kisi ko maths m 18 internal mila h aur 15 external mila hai to wo student dono ko add kr ke pass ho jayega??

Posted by Aatif K 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Rohit Sahani? 6 years, 10 months ago

Ab practical me 33℅ aur theory me 33℅ laane honge tab jaake pass hoge

Rohit Sahani? 5 years, 8 months ago

He pagal passing criteria change ho chuka hai

ANSWER

Prove that ( 1+ cotA+ tanA ) ( sinA - cosA )= sinA.tanA - cotA.cosA

Posted by Mohd. Adnan Ansari 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

One year ago, a man was 8 times as old as his son. Now, his age is equal to the square of his son, s age in year. Find their present ages

Posted by Vishal Vishu K. Mathur 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 10 months ago

Let age of son one yr ago be x
age of man one yr ago be 8x
.....
age of son after one year = x+1
age of man after one year = 8x+1
....
now accordind to question..
8x+1= (x+1)^2
8x+1=x^2 + 1 +2x
after solving
8x = x^2 +2x
now...x^2 - 6x=0
solving this we get ...x=0 and x = 6 but
age cant be zero...so..x=6...
age of son is x+1 = 7 years
and age of man be 8x+1= 49

ANSWER

Write value of x for which x+2,2x,2x+3 are consecutive term of an ap.

Posted by Chinmy Uikey 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 10 months ago

Let us take an A.P of terms a, b, c
The arithmetic mean is b

Here,
a= x + 2
b= 2x
c= 2x + 3
On substituting the values in the formula we get :
2x=x+2+2x+3/2
2x=3x+5/2
4x=3x+5
X=5
Hence the value of x is 5

ANSWER

If p , q and r are in AP , then prove that (p+2q-r)(2q+r-p)(r+p-q)=4pqr

Posted by Divanshu Rawat 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Divanshu Rawat 6 years, 10 months ago

Alkesh ye kaise kiya

Last Bencher 6 years, 10 months ago

Pqr (1+2×1-1)(2×1+1-1)(1+1-1) = pqr (2)(2)(1) = 4pqr

Last Bencher 6 years, 10 months ago

Pqr (1+2×1-1)(2×1+1-1)(1+1-1) pqr (2)(2)(1) 4pqr

Divanshu Rawat 6 years, 10 months ago

Yar koi solve kar do

ANSWER

Write the definition of basic proportional theorem

Posted by Mirza Awaiz Baig Awaiz 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Dia Khurana@1608 6 years, 10 months ago

If a line drawn parallel to one side of a ∆ then the to intersect the other two sides in distinct points , divides the two sides in the same ratio

Usha Yadav 6 years, 10 months ago

If a line drawn parallel to one side and intersect other two sides,then it will divide other two sides in the same ratio

ANSWER

6.4 Q-3

Posted by Mukul Verma 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Ram Kushwah 6 years, 10 months ago

Please check in previous question

Prince Kumar Gupta 6 years, 10 months ago

See it in this app

ANSWER

Class x Ch 5 Exe-5.3 Q-9, 10,11,12,13,14

Posted by Harleen Kaur 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Distance from p(2,3)from x axis is

Posted by Shreya Purvi Shreya Purvi 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Mihir Panchal 6 years, 10 months ago

Put distance formula in this question

Harshi Raghav 6 years, 10 months ago

3 units Bcoz it is the y-cordinate also called ordinate

??? ??? 6 years, 10 months ago

3 units

ANSWER

Important questions of all chapters

Posted by Abhishek Khosla 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Anjali Kori 6 years, 10 months ago

I will say that all questions are important

ANSWER

If 9th term of an A.P is 0, show that 29th term is twice its 19th term

Posted by Dia Khurana@1608 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 10 months ago

Let the first term of an A.P. = a

And common difference = d

Given: 9^th term of an A.P. is 0. Therefore,

We have to prove that

Thus,

And

From equation (2) and (3),

Hence proved

ANSWER

The length, breadth and height of a room are 8m50cm,6m25cm and4m75cm. Find the length of longest rod that can measure the dimensions of room

Posted by Khushi Agrawal 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Prince Kumar Gupta 6 years, 10 months ago

Take hcf of all the numbers

ẞì D Hàrth 6 years, 10 months ago

ans=4m 75cm

ANSWER

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